Swivel bubbling head



Patented Oct. 21, 1924.

UNITED sra'rss PATENT FFICE,

PHILIP WIUELLER AND ANTUN C. SCE-IUERMANN, 0F IEGATUR, ILLNOIS, ASSIGNORS TO .ADOLLPH MUELLER, TRUSTEE, 0F DECATUR, 'ILLNOLS.

S177 VEL BUBBLING HEAD.

Application led November 12, 1919.

To all whom t may concern:

Be it known that PHILIP MUnLLEr. and ANTON C. Ser-IUERMANN, citizens of the United States, residing` at Decatur, in the county of Macon and State of illinois, have invented new and useful improvements4 in Swivel Bubbling Heads, ot which the foilowing is a specication.

This invention relates to drinking fountains and has particular reference to connections between the supply pipe and the bubblingl head.

It has been customary to provide the bubbling head and supply pipe with complementary threads so that the former can be screwed into place on the latter, and the result, not infrequently, has been that the head is surreptitiously unscrewed and removed by some person maliciously inclined; or in some instances the head has been accidentally removed. It the head is secured to the supply pipe against rotation then might occur that some malicious persons in their lattempt to remove the head, would exert torsional strains on the connection between the head and pipe with the result that some part of the connection would be broken.

The present invention has for its objects to minimize the likelihood of removal oi' the head from the pipe or the breaking of the supply pipe in an attempt to remove the head, and for these purposes the head is mounted on the pipe so as to swivel thereabout, and the means for securing the head to the pipe is so arranged that continued rotary movement of the head relative to the pipe does not disarrange the locking` means. In the present invention, the means for locking the head to the pipe is ot' a very simple construction and is positioned within the head, and to gain access to the locking meansl a tool is necessary to disassemble the parts of the head, and thus access to the locking means cannot be readily attained by one maliciously inclined.

In the drawings herewith, we have illustrated two embodiments of our invention and in said drawings:

Figure 1 is a vertical sectional view through one embodiment of our improved connection between a bubbling head and nipple of the supply pipe, the upper end ci' the nipple being in elevation.

Serial No. 337,492.

Figure 2 is a sectional view taken on line 2--2 of Figure 1.

Figure 3 is a view similar to Figure 1 and illustrates another embodiment of our invention.

ln the drawings, wherein like numerals represent like parts in the several views, we have illustrated abubbling head somewhat similar to that illustrated in the Mueller and Schuermann ratent No. 1,054,306, patented February 25, 1913. rlihis head comprises a metallic body having a cup portion 10 internally threaded for the reception of a hollow cap 11. rEhe neck portion 12 of the body is centrally apertured or bored so as to encircle the upper end of the nipple 13 ot the supply pip-e. lt is obvious, that the nipple 13 may be eliminated and the head secured directly to the supply pipe in which event the upper end let the latter would have the` saine construction as the nipple.

A baiile plate 111-, as in the aforesaid patent, is seated on and encloses the bottom ot' the cap 11, and in the present instance this baille plate is fastened to the cap by means of screws 15 which pass through holes in the peripheryl of the battle plate and into lugs 16 projecting from the sides of the rim ot the cap. lt is, of course, understood that in the present instance we have shown the particular bubbling head described for illustrative purposes only and any suitable head may be employed. i.

, The nipple 13 is internally threaded at its lower end so that it may be screwed into place on the end of the supply pipe, (not shown) and the upper end 17 ot the nipple for a substantial distance of its length is ot reduced diameter so as to provide an annular shoulder 18.

The central bore through the neck portion 12 of the bi'ibbling head is ot reduced diameter at its lower end, as at 19, so as to snugly receive the reduced portion 17 ot the nipple 13 and the lower edge ot the neck portion 12 rests upon the shoulder 18 and thus downward movement of the head upon the nipple is limited. intermediate the ends of the neck portion 12 the central bore therethrough is counter-bored so as to provide an annular recess 20, which recess receives a packing 21 of any suitable material and a metallic packing ring 22. The upper end of the through bore of the neck portion 12 is counterbored to still greater diameter, as at 23, and between the bores 2O and is the shoulder 24.

In each embodiment of our invention, the upper end of the nipple 18 is externally A threaded, as at 25, so as to receive the internal threads of a locking nut 26, which locking nut lies within the large counterbore 23 When the parts are properly assembled. Immediately below the threaded portion 25 of the nipple is a ring of vertical corrugations or serrations 27 which are, preferably, of less length than the thickness of the packing ring 22. The packing ring 22 is provided with a central opening which is longitudinally corrugated, the corruga'tions 28 of the packing ring 22 being equal in number and like size to the corrugations 27 so as to interlock therewith. Upon the upper surface of the nut 25 are lugs 29 which are engaged by a suit able tool such as a Spanner wrench when it is desired to unscrew the nut 2G from its place upon the nipple 15. It is, of course, understood that the lugs 29 may be replaced by a kerf or other means to permit ready removal of the nut.

In the embodiment of our invention disclosed in Figures 1 and 2, the packing ring 22 is of the same external diameter throughout its length so that the entire ring may be received by the counter-bore 2O of the neck portion 12 with the upper edge of the ring substantially on the same level as the shoulder 24.

In the embodiment of our invention disclose-d in Figure 3, the packing ring 22 is provided about its upper edge with a radially extending annular flange 3G, the external diameter of the flange being substantially equal to the internal diameter of the `enlarged bore 23 so that the under surface 'of the flange may rest upon the shoulder 24: between the bores 20 and 23.

The parts are assembled by first removing the cap 11 from the cup 10 of the head body and then slipping the neck portion 12 of the body about the reduced portion 17 of ythe nipple, downward movement of the bubbling head being limited by the shoulderrlS. The packing 21 is then inserted in the recess or enlarged bore 20 and this is followed, in the embodiment shown in Figure 1, by the packing ring 22 and, in the embodiment shown in Figure S by the ring 22', the internal corrugations 28 on the packing rings being in engagement with the external serrations 27 on the reduced portion of the nipple. The nut 26 Vis then screwed into place upon the threaded portion 25 of the nipple 13.

n The cap 11 is then screwed into place in the cup 10,

Vand for the purpose of screwing the cap into place a specially constructed 'Spanner wrench or a strap wrench may be employed.

It will be noted that, in each embodiment of our invention, should anyone attempt to remove the bubbler head from the nipple they would naturally try lo un screw the same, but the head would n'lerely rotate idly upon the nipple 13. The nut 26 is housed within the head of the bubbler so that to gain access thereto it necessary to remove the cap 11, but this cap cannot be unscrewed from position by grasp ing the same in the hand but a tool is necessary to remove the cap.

ln case there was any contact between the head and the nut 2G, it is quite likely that due to frictional ei'igagemenlz therebetween the nut would be unscrewed when the head is rotated in proper direction. 'lo guard against this contingency the diameter of the nut 26 is slightly less than the internal diameter of the recess 23 so that there is a clearance between the periphery of the nut and the surface of the bore 2?).

ln the embodiment of our invention, disclosed in Fig. 1, the distance between the top ends of the corrugations 2T and the shoulder 18 is substantially equal to that between the shoulder 241 and the bottom edge of the neck portion 12 of the head so that when the nut 26 is screwed into place upon the nipple it will rest against the tops of the corrugations 27. Sulicient clearance between the shoulder 2d and the under surface of the nut 2G is provided, however, to permit of a swivel movement.

.in Figure 3, it will be seen that the flange 30 is interposed between the under surface of the nut 2G and the shoulder 211, and since the ring 22 is held stationary, due to the corrugations 27 and 28, the nut 26 does not touch any rotatable part.

It is, of course, understood that our invention is susceptible to the various changes and modifications which fall within the spirit of our invention without departing from the scope of the following claims.

117e claim:

1. 1n a drinking fountain, a supply pipe.` a cup member rotatably mounted on said pipe. a cap connected to said cup member. a baille plate engaging the bottom of said cap, means detaehabiy connerted to said supply pipe for proviniting` removal of the cup member therefrom, said means being accessible only upon removal et the baille plate from the cup member.

2. In a drinking foum'ain, z a cup member having a neck portion surrounding said pipe, a packing in said neck portion, means secured to the end of said pipe and free of said member to maintain the member on the pi pe while permitting of :i swivel movement of the member. a cap connected to said cup member, a baffle plate engaging the bottom of said cap, a ring havsupply pipe,

loo

lofi

ing internal serrations and interposed between said packing and securing means, said pipe having external serrations engaging said serrations oi' the ring to prevent rotation of the ring.

3. In a drinking fountain, a supply pipe, a cup member having a neck portion surrounding said pipe, a packing in said neck portion, means secured to the end et said pipe and tree of said member to maintain the member on the pipe while permitting oil a swivel movement of the member, a cap connected to said cup member, a battle plate engaging the bottom of said cap, a ring having internal serrations and interposed between said packing and securing means, said pipe having external serrations engaging said serrations of the ring to prevent rotation of the ring, said securing means being accessible only upon removal ot the baiile plate from' the bubbler head.

t. ln a drinking fountain, a supply pipe having an abutment thereon and having its upper end threaded, a bubbler head having a neck portion surrounding said pipe. the lower wall of the neck portion having an aperture adapted to closely receive said pipe and the edge about said aperture being adapted to rest upon said abutment, said neck portion being counter-bored above the lower wall thereof, a packing in said neck portion, a ring in said counter-bore engaging said packing, internal serrations on said ring, external serrations on said pipe in engagement with said internal serra-tions to prevent rotation of the ring while permitting longitudinal movement of the ring upon the pipe, and a nut screwed upon the threadcd portion of said supply pipe and engaging against said ring.

5. ln a drinking fountain, a supply pipe having an abutment and threaded for a portion of its length, a bubbler head having a neck portion the lower wall of which is apertured to closely receive the reduced portion of said supply pipe, a first counteribore in said neck portion, a second and larger counter-bore above said iirst counterbore, a packing in said first counter-bore, a ring in said first counter-bore against the AJacking, internal serrations on said ring, external serrations on said supply pipe engaging the internal serrations on said ring,

and a nut loosely fitting in said second coun ter-bore and screwed upon the threaded end of said supply pipe and against said ring.

6. In a drinking fountain, a supply pipe having an abutment and threaded for a portion of its length, a bubbler head having a neck portion the lower wall of which is apertured to closely receive the reduced portion of said supply pipe, a lirst counter-bore in said neck portion, a second and larger counter-bore above said iirst counter-bore, a packing in said first counter-bore, a ring in said first counter-bore against said packing, internal serrations on said ring, external serrations on said supply pipe engaging the internal serrations on said ring, and a nut loosely iitting in said second courrter-bore and screwed upon the threaded end of said supply pipe and against said ring, the distance between the upper ends of said external serratons and said abutment being substantially equal to the distance between the shoulder between said counterbores and the under surface of the lower wall oit' said neck portion, so as to prevent said nut from being tightly pressed against said shoulder.

7. In a drinking fountain, a supply pipe having an abutment and threaded for a portion of its length, a bubbler head having a neck portion the lower wall of which is apertured to closely receive the above said abutment portion of said supply pipe, a first counter-bore in said neck portion, a second and larger counter-bore above said irst counten-bore, a packing in said first counter-bore, a ring in said first counterbore against said fpacking, internal serrations on said ring, external serrations on said supply pipe engaging the internal serrations on said ring, and a nut in saidsecond eounter-bore and screwed upon the threaded end of said supply pipe and against said ring, said ring having a circumerential flange resting upon the shoulder between the counter-bores in said neck portion to prevent contact between said shoulder and nut.

In testimony whereof we have hereunto set our hands.

PHILIP MUELLER. ANTON C. SCHUERMANN. 

